JP2017076933A - Wiper device for optical equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiper device for optical equipment that can remove raindrops and dust more effectively.SOLUTION: A wiper device 100 for optical equipment that comprises optical equipment 1 having a photoelectric sensor, a cover glass 10 enclosing the optical equipment 1, and a housing 20 enclosing the cover glass 10, and cleans a surface of the cover glass 10 by rotating the housing 20 and cover glass 10 relatively comprises a driving unit M which rotates the cover glass 10 and housing 20 relatively. The housing 20 is provided with an opening part 21 for imaging at a place corresponding to the optical axis of the photoelectric sensor, and a seal ring 22 coming into slide contact with the cover glass 10 is mounted on a peripheral edge of the opening part 21 of the housing 20. Further, a wiper ring 23 coming into slide contact with the cover glass 10 is mounted at a place different from the opening part 21 of the housing 20, and a cleaning liquid 30 for cleaning the surface of the cover glass 10 is supplied to the place of the wiper ring 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wiper device for an optical device that is generally used outdoors such as a vehicle-mounted camera and a front door camera.

  Optical equipment such as outdoor surveillance cameras, for example, for in-vehicle use, dust or rainwater adheres to the camera window during travel, and rainwater, dead leaves, etc. for entrance doors. It is known that the camera is provided with so-called cleaning means so that a clear image can be obtained by removing these (Patent Documents 1 and 2).

  The thing of patent document 1 was made for the purpose of the vehicle-mounted camera unit which can provide a small size, weight reduction, and an effective visual field, without using the drive system by a motor etc., and protects the lens surface of a camera part roughly. The vehicle-mounted camera unit has a transparent cover portion installed on the camera casing by the shaft portion so as to swing with respect to the camera portion, and a wiper portion that abuts against the cover portion.

  Patent Document 2 discloses a transparent cover that forms a light incident surface and protects an internal optical system, and a wiper that is fixed to a movable head that holds the internal optical system and is relatively movable with respect to the transparent cover. The wiper slides and moves on the surface of the transparent cover during the monitoring operation of the camera.

JP 2006-279560 A Japanese Utility Model Publication No. 6-25064

  In the above prior art, in Patent Document 1, the cover portion has a partial spherical shape in the portion covering the lens surface of the camera portion, and has a weight at the end of the shaft portion in a direction perpendicular to the swing axis. Since the cover part is slid with respect to the wiper part by swinging the cover part with the inertial force of the weight due to the change in the speed of the camera housing, Since there is no power source, it is not possible to obtain an accurate cleaning operation. As a result, this camera wiper has a problem that it is impossible to forcibly remove raindrops and dust and always obtain a clear image.

  Further, as disclosed in Patent Document 2, for example, when recalling a windshield wiper in a vehicle, there is an inconvenience that the removal of dirt on the wiper portion cannot be fully achieved only by rotating the transparent cover. .

  The present invention has been made in view of the above circumstances, and proposes a wiper device for an optical apparatus that can eliminate the inconveniences and inconveniences of the prior art and can more effectively remove raindrops and dust. Is.

The invention described in the first claim of the present application includes the optical device 1 having a photoelectric sensor, the cover glass 10 enclosing the optical device 1, and the cover glass 10. In the wiper device 100 for an optical apparatus that includes a housing 20 that encloses and cleans the surface of the cover glass 10 by relatively rotating the housing 20 and the cover glass 10,
A drive unit M for rotating the cover glass 10 and the housing 20 relative to each other;
The housing 20 is provided with an opening 21 for imaging at a location corresponding to the optical axis of the photoelectric sensor,
A seal ring 22 that is in sliding contact with the cover glass 10 is attached to the periphery of the opening 21 of the housing 20, and a wiper that is in sliding contact with the cover glass 10 at a location different from the opening 21 of the housing 20. Wear ring 23,
Further, the wiper device 100 for optical equipment is characterized in that a cleaning liquid 30 for cleaning the surface of the cover glass 10 is supplied to the wiper ring 23.

In the invention described in claim 2 of the present application, the housing 20 is a container-like member having an upper opening.
The cover glass 10 is a translucent container-like member having an upper opening, is held by the apparatus body 2 and is rotatably provided by the drive unit M.
Further, the cover glass 10 is provided with a spherical bulging portion 11 in a radial direction at a position corresponding to the optical axis of the photoelectric sensor,
The optical device wiper apparatus according to claim 1, wherein the cleaning liquid is filled between the housing and the cover glass.

In the invention described in claim 3 of the present application, the opening 21 of the housing 20 has a circular shape, and the seal ring 22 is attached to the periphery of the opening 21.
The optical device wiper apparatus according to claim 2, wherein the seal ring (22) is in sliding contact with the bulging portion (11) of the cover glass (10) to prevent the cleaning liquid (30) from flowing out. .

  The invention described in claim 4 of the present application is the wiper device 100 for optical equipment according to claim 1, wherein the housing 20 is provided with a tank portion 24 for storing the cleaning liquid 30 therein.

  The invention described in claim 5 of the present application is the wiper device 100 for optical equipment according to claim 1, wherein the housing 20 is provided with an inlet portion 25 and an outlet portion 26 for the cleaning liquid 30.

  The invention described in claim 6 of the present application is the wiper device 100 for an optical instrument according to claim 4, wherein the tank portion 24 is provided with an inlet portion 25 and an outlet portion 26 for the cleaning liquid 30.

  The invention described in claim 7 of the present application is the wiper device 100 for optical equipment according to claim 1, wherein the housing 20 is provided with a heater H for warming the cleaning liquid 30.

  The invention described in claim 8 of the present application is the wiper device 100 for optical equipment according to claim 1, wherein the photoelectric sensor is an image sensor of a camera.

  The invention described in claim 9 of the present application is the optical apparatus wiper apparatus 100 according to claim 1, wherein the apparatus main body 2 is mounted outside or inside a vehicle.

  The invention described in claim 10 of the present application is the wiper device 100 for optical equipment according to claim 1, wherein the device main body 2 is installed outside a building.

  The invention described in claim 11 of the present application is the wiper device 100 for optical equipment according to claim 1, wherein the driving unit M is provided on a base plate of the device main body 2.

  The invention described in claim 12 of the present application is characterized in that the driving unit M is provided in the apparatus main body 2 via a stay 4 at a position of the lower end in the container of the cover glass 10. 1 is a wiper device 100 for an optical apparatus according to 1;

  According to the present invention, the wiper portion using the wiper ring is provided at a location different from the opening of the photoelectric sensor, and the wiper portion is equipped with the cleaning device using the cleaning liquid. In addition to the dynamic effect, it is possible to remove raindrops and dust even more effectively by adding compensation with a cleaning liquid.

  Also, since raindrops and dust are removed at a location different from the opening of the photoelectric sensor, if the window is dirty, the cover glass surface will be brought back as soon as possible by rotating the cover glass. The cover glass surface which is sent and simultaneously cleaned in the same manner can be made to appear in the window portion.

  Further, when the housing is provided with a tank portion for storing the cleaning liquid, it can be used for a vehicle mounting that makes it difficult to replenish the cleaning liquid halfway.

  Moreover, when the heater which warms a washing | cleaning liquid is provided in the housing, it can be used in a cold district.

It is a vertical front view which shows the wiper apparatus concerning the Example of this invention. It is a right view which concerns on the Example of this invention and shows a wiper apparatus. It is a partially broken front view which shows the wiper apparatus concerning the Example of this invention. It is a partially abbreviated vertical front view showing a wiper device concerning other examples of the present invention. It is an enlarged view of the A section in FIG. It is an enlarged view of the B section in FIG. It is an enlarged view of the C section in FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 to 4, the wiper device 100 for the optical device of this example includes an optical device 1 having a photoelectric sensor such as a camera, and a cover glass 10 including the optical device 1, as in the conventional device. A wiper device 100 for optical equipment that cleans the surface of the cover glass 10 by moving the housing 20 and the cover glass 10 relative to each other (hereinafter simply referred to as “wiper device 100”). It is. In this example, a camera is used for the optical device.

  The wiper device 100 of the present example is different from the conventional one in that the conventional one is provided with a so-called wiper part in a camera window part (such as a lens or a part provided with a transparent cover in front of the lens). In this example, the wiper part is provided not at the window part of the camera, but at a place different from the window part, and the cleaning device using the cleaning liquid 30 is provided at the wiper part. Is different. Hereinafter, the basic configuration of the wiper apparatus 100 of this example will be described, and then each configuration will be described in detail.

  As shown in FIG. 1, the housing 20 is fixed to an apparatus body 2 such as a base plate on which a driving unit M such as a motor is installed, and includes a cover glass 10. In this example, the housing 20 is a light-shielding container-like member having an upper opening, and an imaging opening 21 is provided at a location corresponding to the optical axis of the photoelectric sensor. In the embodiment, the opening 21 has a circular shape.

  The cover glass 10 is held by the apparatus main body 2 and is rotatably provided by the drive unit M. In this example, the drive part M is installed in the base plate of the apparatus main body 2, the toothed belt 3 is wound around this drive part M, and it is provided so that it can rotate by motor drive.

  Further, in this example, the cover glass 10 is a translucent container-like member having an upper opening, and a spherical bulge 11 is provided in a radial direction at a position corresponding to the optical axis of the camera. ing.

  A cleaning liquid 30 for cleaning the surface of the cover glass is filled between the housing 20 and the cover glass 10 included in the housing 20.

  Further, a seal ring 22 for preventing the cleaning liquid from flowing out is attached to the periphery of the circular opening 21 of the housing 20 so as to be in sliding contact with the bulging portion 11 of the cover glass 10 (see FIG. 6). That is, since the cleaning liquid 30 is filled between the housing 20 and the cover glass 10 included therein, the seal ring is prevented from leaking from the peripheral edge of the circular opening 21 of the housing 20. 22 is attached.

  Further, a wiper ring 23 (see FIG. 7) that is in sliding contact with the bulging portion 11 of the cover glass 10 is mounted at a location different from the circular opening 21 of the housing 20. The wiper ring 23 cleans the surface of the bulging portion 11 as will be described later.

  The optical device 1 is located in a non-contact state with the cover glass 10 at the location of the bulging portion 11 of the cover glass 10. The optical axis of the camera is directed to the opening 21 of the housing 20 as described above. The optical device 1 is provided below the stay 4, and the stay 4 is fixed to the base plate of the apparatus main body 2 via a support member 5. The optical apparatus 1 is inserted into the cover glass 10 at a slight angle (see the two-dot chain line in FIG. 1).

  As described above, the cleaning liquid 30 is filled between the housing 20 and the cover glass 10 contained therein, and in this example, the cover glass 10 rotates. A prevention seal 6 (see FIG. 5) is attached. In the figure, reference numeral 7 is a retainer, 8 is a lower bearing, and 9 is an upper bearing.

  The lip tip portions 6a, 22a and 23a of the seal 6, the seal ring 22 and the wiper ring 23 are pressed against the surface of the cover glass 10 and are in sliding contact with each other. Among these, the seal 6 and the seal ring 22 seal the cleaning liquid 30 and prevent entry of dirt. On the other hand, the lip end portion 23a of the wiper ring 23 is mainly intended to scrape off dirt by providing this, and is therefore referred to as a wiper rather than a seal. In addition, these materials and shapes can be made of an appropriate material such as rubber, sponge, cloth, and nonwoven fabric, and further, an appropriate shape such as a planar shape or a brush shape can be used.

  In the above-described wiper device 100 of the present example, when the drive unit M is driven, the cover glass 10 rotates via the toothed belt 3. When the cover glass 10 is rotated, the surface of the bulging portion 11 of the bulging portion 11 of the cover glass 10 is cleaned by relative sliding with the wiper ring 23 slidably in contact therewith.

  At this time, since the surface of the bulging portion 11 is immersed in the cleaning liquid 30, dirt adhering to the surface of the bulging portion 11 can be wiped off together with the cleaning liquid, thereby further cleaning the bulging portion 11. It can be performed more effectively.

  Furthermore, the suitable Example in the wiper apparatus 100 of this example is demonstrated.

  In this example, both the housing 20 and the cover glass 10 have a substantially cylindrical shape, and as described above, the upper portion is provided with an opening and the bottom surface is convexly closed. Bearings 8 and 9 (see FIGS. 1, 4 and 5) are arranged on the upper part, respectively. If comprised in this way, rotation with respect to the housing 20 of the cover glass 10 will be made stably and smoothly.

  In this example, the housing 20 is provided with a tank portion 24 for storing the cleaning liquid 30 (see FIGS. 1 and 2). Thus, when the tank part 24 is provided, the wiper apparatus 100 of this example is suitable for the thing for vehicle mounting in which the replenishment of the washing | cleaning liquid 30 becomes difficult for example.

  In another embodiment of the present example, as shown in FIG. 3, only the inlet portion 25 and the outlet portion 26 of the cleaning liquid 30 are provided in the housing 20 without providing the tank portion 24 of the previous example. This is suitable for the case where the cleaning liquid 30 can be appropriately replenished, for example, by providing the wiper device 100 of the present example fixedly outside the entrance or the like.

  Further, as shown in FIG. 2, a heater H that warms the cleaning liquid 30 may be provided in the housing 20. It is suitable when the wiper apparatus 100 of this example is used in a cold region.

  In the example shown in FIG. 1, the drive unit M is installed on the base plate of the apparatus body 2, and the toothed belt 3 is wound between the drive unit M and the cover glass 10 to rotate the cover glass 10. In addition to this, for example, as shown in FIG. 4, the drive unit M is installed at the lower end in the container of the cover glass 10 and provided in the apparatus main body 2 via the stay 4. The cover glass 10 may be configured to rotate.

  As described above, the wiper device 100 of this example can remove raindrops and dust and can always obtain a clear image as a wiper for optical equipment installed outdoors. In particular, since the cover glass 10 is contained in the housing 20 and the cleaning liquid 30 for cleaning the surface of the cover glass 10 is used, raindrops and dust can be removed more effectively. It can be applied, and since the device is compact, the wiper device can be miniaturized.

  Of course, the present invention is not limited to the above-described embodiments, but covers a wide range of embodiments capable of achieving the object.

  The wiper device for optical equipment of the present invention is suitable for a position detection camera and an outdoor camera that are generally used outdoors such as a vehicle-mounted camera and a front camera.

DESCRIPTION OF SYMBOLS 1 Optical apparatus 2 Apparatus main body 3 Toothed belt 4 Stay 5 Support member 6 Seal 6a Lip tip part 7 Retainer 8 Lower bearing 9 Upper bearing 10 Cover glass 11 Bulging part 20 Housing 21 Opening part 22 Seal ring 22a Lip tip part 23 Wiper Ring 23a Lip tip part 24 Tank part 25 Inlet part 26 Outlet part 30 Cleaning solution 100 Wiper device M for optical equipment M Drive part H Heater

When the invention described in the first claim of the present application is described with the reference numerals used in the embodiments, the optical device 1 having a photoelectric sensor;
A stay 4 for supporting the optical device 1 ;
A cover glass 10 having a cylindrical shape with an open top and a spherical bulging portion 11 at the bottom and enclosing the stay 4;
A housing 20 that includes a portion other than the upper portion of the cover glass 10 and rotatably supports the cover glass 10 via an upper bearing 9 and a lower bearing 8, and has an imaging opening 21 outside the bulging portion 11; ,
A cleaning liquid 30 filled between the housing 20 and the cover glass 10;
A seal ring 22 disposed on the periphery of the opening 21 to prevent the cleaning liquid 30 from flowing out of the opening 21;
A seal 6 disposed below the upper bearing 9 to prevent the cleaning liquid 30 from flowing out;
A drive unit M for rotating the cover glass 10;
A wiper ring 23 disposed in a portion of the gap between the housing 20 and the cover glass 10 that does not face the opening 21, and slidably contacts the bulging portion 11 as the cover glass 10 rotates;
Which is a wiper apparatus 100 for optical apparatus characterized by comprising.

In the invention described in claim 2 of the present application, the housing 20 is a container-like member having an upper opening.
The cover glass 10 is a translucent container-like member having an upper opening, is held by the apparatus main body 2 and is rotatably provided by the driving unit M.
Further, the cover glass 10 is provided with a spherical bulging portion 11 in a radial direction at a position corresponding to the optical axis of the photoelectric sensor,
The optical device wiper apparatus according to claim 1, wherein the cleaning liquid is filled between the housing and the cover glass.

The invention described in claim 9 of the present application is the optical apparatus wiper apparatus 100 according to claim 2 , wherein the apparatus main body 2 is mounted outside or inside a vehicle.

The invention described in claim 11 of the present application is the wiper device 100 for optical equipment according to claim 1, wherein the driving unit M is provided in the device main body 2 such as a base plate .

This application is the invention described in the twelfth aspect, the claims wherein the drive unit M, characterized in that provided on the apparatus main body 2 through the stay 4 at locations vessel lower end of the cover glass 10 2 is a wiper apparatus 100 for optical apparatus according.

In another embodiment of the present example, as shown in FIG. 4 , only the inlet portion 25 and the outlet portion 26 of the cleaning liquid 30 are provided in the housing 20 without providing the tank portion 24 of the previous example. This is suitable for the case where the cleaning liquid 30 can be appropriately replenished, for example, by providing the wiper device 100 of the present example fixedly outside the entrance or the like.

Claims (12)

An optical device 1 having a photoelectric sensor, a cover glass 10 containing the optical device 1, and a housing 20 containing the cover glass 10, and by rotating the housing 20 and the cover glass 10 relative to each other, In the wiper device 100 for an optical instrument that cleans the surface of the cover glass 10,
A drive unit M for rotating the cover glass 10 and the housing 20 relative to each other;
The housing 20 is provided with an opening 21 for imaging at a location corresponding to the optical axis of the photoelectric sensor,
A seal ring 22 that is in sliding contact with the cover glass 10 is attached to the periphery of the opening 21 of the housing 20, and a wiper that is in sliding contact with the cover glass 10 at a location different from the opening 21 of the housing 20. Wear ring 23,
Further, the wiper device 100 for optical equipment is characterized in that a cleaning liquid 30 for cleaning the surface of the cover glass 10 is supplied to the wiper ring 23. The housing 20 is a container-like member having an upper opening,
The cover glass 10 is a translucent container-like member having an upper opening, is held by the apparatus body 2 and is rotatably provided by the drive unit M.
Further, the cover glass 10 is provided with a spherical bulging portion 11 in a radial direction at a position corresponding to the optical axis of the photoelectric sensor,
The optical apparatus wiper apparatus according to claim 1, wherein the cleaning liquid is filled between the housing and the cover glass. The opening 21 of the housing 20 has a circular shape, and the seal ring 22 is attached to the periphery of the opening 21.
The optical device wiper apparatus according to claim 2, wherein the seal ring (22) is in sliding contact with the bulging portion (11) of the cover glass (10) to prevent the cleaning liquid (30) from flowing out.   The optical device wiper apparatus according to claim 1, wherein the housing is provided with a tank portion for storing the cleaning liquid.   The optical device wiper apparatus according to claim 1, wherein the housing includes an inlet portion and an outlet portion of the cleaning liquid.   The optical device wiper apparatus according to claim 4, wherein an inlet portion and an outlet portion of the cleaning liquid are provided in the tank portion.   The optical device wiper apparatus according to claim 1, wherein the housing is provided with a heater for heating the cleaning liquid.   The optical device wiper apparatus according to claim 1, wherein the photoelectric sensor is an image sensor of a camera.   The optical device wiper device according to claim 1, wherein the device main body is mounted outside or inside a vehicle.   The optical device wiper apparatus according to claim 1, wherein the apparatus main body is installed outside a building.   The optical device wiper apparatus according to claim 1, wherein the driving unit is provided on a base plate of the apparatus main body. The optical device wiper apparatus according to claim 1, wherein the driving unit is provided in the apparatus main body through a stay at a lower end in the container of the cover glass.

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